diff --git a/.gitignore b/.gitignore
index d588a6b..f74d387 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,7 +9,7 @@ __pycache__
 .pytest_cache
 tests/autogenerated_*.py
 docs/build/
-docs/source/modules.md
+docs/source/_autogenerated/
 venv/
 .venv/
 thermo_data/combined_data.yaml
diff --git a/pyproject.toml b/pyproject.toml
index add4009..c66f0db 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,11 +40,12 @@ dev = [
     "cantera",
     "pyyaml>=6.0.1",
     "types-PyYAML",
-    "scipy-stubs"
+    "scipy-stubs",
+    "matplotlib"
 ]
 doc_build = [
   "sphinx",
-  "sphinx_rtd_theme",
+  "pydata_sphinx_theme",
   "sphinx-autodoc-typehints",
   "myst-parser",
   "pandas",